package com.heima.model.common.serializer;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;  
import com.fasterxml.jackson.databind.SerializerProvider;  
import java.io.IOException;  
  
public class LongToStringSerializer extends JsonSerializer<Long> {  
  
    @Override  
    public void serialize(Long value, JsonGenerator gen, SerializerProvider serializers) throws IOException {  
        if (value == null) {  
            gen.writeNull();  
        } else {  
            gen.writeString(value.toString());  
        }  
    }  
}
